http://www.bendnet.com/nomadics.htm
The Nomadics Tipi Makers (the company that made all the tipis for the movie Dances With Wolves) home page provides information on making tipis. The topics covered include the Architectural Design of the Sioux Tipi, Hand Painted Tipi Liner Designs, Tipi Fabrics/Ceremonial Tipi, An 8' Tipi for Kids, How to set-up the Tipi, Hand Painted Tipi Covers and Tipi sizes and prices. Their 35-page catalog is also available, for $2.